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Background: Attention deficit hyperactivity disorder (ADHD) is a widely recognized mental health problem in developed countries but remains under-investigated in developing settings. This study examines the prevalence, correlates, and consequences of ADHD symptoms among elementary school students in rural China. Methods: Cross-sectional data were collected from 6,719 students across 120 rural primary schools in China on ADHD symptoms, demographic characteristics, and academic performance in reading and math. ADHD symptoms were evaluated using the caregiver-reported ADHD Rating Scale-IV. Results: The prevalence of ADHD symptoms was 7.5% in our sample. Male students, students in lower grade levels, and students with lower cognitive ability showed a significantly higher prevalence of ADHD symptoms (ORs = 2.56, 2.06, and 1.84, respectively; p<0.05). Left-behind children showed a significantly lower prevalence of ADHD symptoms than did children who were living with their parents (OR = 0.74, p < 0.05). Adjusted regressions show that students with ADHD symptoms scored 0.12 standardized deviations lower in reading (p < 0.05) and 0.19 standardized deviations lower in math (p < 0.01). Limitations: The ADHD Rating Scale-IV is a screening scale rather than a diagnostic test. Caregiver self-report measures also may underestimate ADHD symptoms for our sample. Conclusions: ADHD is a common disorder among rural students in China and appears to be contributing to poor academic outcomes. The higher prevalence of ADHD among students with low cognitive ability also suggests that many rural children in China face multifactorial learning challenges. Taken together, the findings indicate a need for educators and policymakers in rural China to develop programs to reduce risk and support students with ADHD symptoms.

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Journal of Affective Disorders
Authors
Huan Wang
Matthew Boswell
Scott Rozelle
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Purpose: This study aims to bridge the gaps in the existing literature by studying the links between children's development and the subjective well-being of the caregivers using first-hand data collected in rural China. Design/methodology/approach: Although the broad array of literature has examined the effects of child development on the subjective well-being of caregivers, the relationship between early childhood development and caregiver subjective well-being has not been well-studied using sample families with potential developmental delay in rural China. Also, existing research has relied on maternal reports to evaluate the developmental status of children. The study used data collected from 32 townships in seven nationally designated poverty counties in the Qinling mountainous area in 2016. The authors measure child development using the social-emotional module of the Ages & Stages Questionnaire and Bayley Scales of Infant and Toddler Development–Third Edition. Findings: The authors find that child development indicators are correlated with caregiver subjective well-being. In particular, social-emotional skills are positively associated with life evaluations and positive emotion. However, we do not find any significant correlation between child development and negative emotion or depression, anxiety and stress scores. Originality/value: The value of this study is to report the indicators of child development in rural China and examines the correlation between child development and caregivers' subjective well-being.
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China Agricultural Economic Review
Authors
Scott Rozelle
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2
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Objective: To examine the correlation between birth season and early childhood development. Background: Almost all previous studies that examine the effect of birth season on early childhood development were conducted in developed countries with a limited sample size. The present study was conducted in poor, rural areas of western China, a developing region with a continental monsoon climate. Method: We administered a hemoglobin test to 650 infants (52% boys), aged 8–10 months, using a Hemocue Hb 201+ finger prick system, and assessed the cognitive and psychomotor development of sample infants using Bayley Scales of Infant Development. Results: Infants born in winter have higher Hb concentrations (t = 3.63, p 0.001) compared to infants born in summer. Similarly, cognitive development scores (t = 5.17, p 0.001) and psychomotor development scores (t = 10.60, p 0.001) were significantly higher among winter-born infants. Conclusion: The findings point to the involvement of birth season in early childhood development and suggest that aspects of the environment shape the experiences that contribute to early childhood development. Policy suggestions such as providing infants with ample opportunities for movement and stimulation during the cold season are discussed.
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PLoS ONE
Authors
Scott Rozelle
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This study examines the effects of local and nationwide COVID‐19 disease control measures on the health and economy of China's rural population. We conducted phone surveys with 726 randomly selected village informants across seven rural Chinese provinces in February 2020. Four villages (0.55%) reported infections, and none reported deaths. Disease control measures had been universally implemented in all sample villages. About 74% of informants reported that villagers with wage‐earning jobs outside the village had stopped working due to workplace closures. A higher percentage of rural individuals could not work due to transportation, housing, and other constraints. Local governments had taken measures to reduce the impact of COVID‐19. Although schools in all surveyed villages were closed, 71% of village informants reported that students were attending classes online. Overall, measures to control COVID‐19 appear to have been successful in limiting disease transmission in rural communities outside the main epidemic area. Rural Chinese citizens, however, have experienced significant economic consequences from the disease control measures.
Journal Publisher
Agricultural Economics
Authors
Huan Wang
Matthew Boswell
Alexis Medina
Prashant Loyalka
Scott Rozelle
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Previous studies have been limited by not directly comparing the quality of public and private CHCs using a standardized patient method (SP). This study aims to evaluate and compare the quality of the primary care provided by public and private CHCs using a standardized patient method in urban China. We recruited 12 standardized patients from the local community presenting fixed cases (unstable angina and asthma), including 492 interactions between physicians and standardized patients across 63 CHCs in Xi’an, China. We measured the quality of primary care on seven criteria: (1) adherence to checklists, (2) correct diagnosis, (3) correct treatment, (4) number of unnecessary exams and drugs, (5) diagnosis time, (6) expense of visit, (7) patient-centered communication. Significant quality differences were observed between public CHCs and private CHCs. Private CHC physicians performed 4.73 percentage points lower of recommended questions and exams in the checklist. Compared with private CHCs, public CHC providers were more likely to give a higher proportion of correct diagnosis and correct treatment. Private CHCs provided 1.42 fewer items of unnecessary exams and provided 0.32 more items of unnecessary drugs. Private CHC physicians received a 9.31 lower score in patient-centered communication. There is significant quality inequality in different primary care models. Public CHC physicians might provide a higher quality of service. Creating a comprehensive, flexible, and integrated health care system should be considered an effective approach towards optimizing the management of CHC models.
Journal Publisher
International Journal of Environmental Research and Public Health
Authors
Scott Rozelle
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Graph lines and bar charts overlaid on a shipping port in China.

Below is an excerpt from the SIEPR policy brief published online.

"As the United States and China enter a new and contentious phase of their relationship, Stanford scholars are setting and expanding research agendas to analyze China’s economic development and its impact on the world. The newly launched Stanford Center on China’s Economy and Institutions (SCCEI, pronounced “sky”) was formed by the Stanford Institute for Economic Policy Research (SIEPR) and the Freeman Spogli Institute for International Studies (FSI) to support their work.

The goal of SCCEI and its affiliated faculty is to provide a dispassionate, fact-based architecture that can help policymakers, business leaders and the general public navigate the fraught relationship between the U.S. and China.

This policy brief outlines the scholarship already underway by some of SCCEI’s affiliates. It includes a range of research on the world’s most populous country: education and wage disparities; workforce transformation; emissions trading; China’s one-child policy; and the effect that racism against Chinese students in America has upon their views about authoritarian rule. As the center matures, research agendas will expand and focus on trade, global supply chains, technology, intellectual property rights, worker productivity, and a range of developing issues affecting the connection between Washington, D.C., and Beijing and the rest of the world."

 

Read the Full Policy Brief

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Stanford scholars are setting and expanding research agendas to analyze China’s economic development and its impact on the world. The newly launched Stanford Center on China’s Economy and Institutions — co-directed by SIEPR senior fellows Hongbin Li and Scott Rozelle — is supporting their work. In this SIEPR Policy Brief, Li and Rozelle outline the research underway by the new center's affiliates.
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Hongbin Li
Scott Rozelle
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This paper examines the external validity of health intervention by comparing the impacts of providing free eyeglasses on the educational performance of nearsighted children in two settings: rural public schools in Western China and urban private migrant schools in Eastern China. The intervention significantly improves educational outcomes by 0.14 standard deviations in math in rural public schools but not in private migrant schools. The difference in measured impacts is due in part to lower quality schooling in migrant schools in Eastern China. Our findings show that only when school is providing a quality education, health interventions might increase student learnings.
Journal Publisher
Journal of Development Effectiveness
Authors
Huan Wang
Scott Rozelle
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We highlight a growing concern in the economics profession that young scholars face incentives that are misaligned with conducting research that furthers knowledge and addresses pressing policy problems. The premium given to publication in top journals leads to an emphasis on exhaustive treatment of narrow questions. Detailed, robustly identified studies of novel questions are of undeniable value; however, the opportunity cost of producing such studies is large in terms of research quantity and policy relevance. For economists who aim to achieve what we view as the ultimate goals of academic research (enhancing understanding of the world, solving social problems, and building foundational knowledge to enable future breakthroughs), we offer some insights from publication philosophy in the field of public health. We discuss how public health has developed norms around publishing that are more successful in meeting these ultimate goals. We then offer thoughts on potential lessons for young economists in China and the economics discipline.
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China Economic Review
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Scott Rozelle
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Foreign Policy: China Will Run Out of Growth if it Doesn't Fix its Rural Crisis

No country with China’s vast education and public health problems has ever broken out of the ranks of middle-income countries.

"At a time when every other major economy is shrinking, China announced in late January that its GDP grew 2.3 percent in 2020. Beneath that impressive achievement, however, lies a very unbalanced recovery: As in the past, Beijing relied heavily on state investment and a state-led push for higher industrial production, while private investment and consumer spending remained weak. Easy credit to fuel growth has likely formed even more so-called zombie companies with little prospect of future profitability and filled the books of Chinese banks with even more bad loans.

That much is familiar to many who have taken a closer look at China’s skewed model for economic growth. What’s much less well known is the disproportionate burden of the COVID-19-induced downturn that has fallen on rural Chinese, including the 290 million migrant workers with rural hukou (household registrations) who work in cities throughout China. Lockdowns forced by the pandemic paralyzed economic sectors where many migrants work, such as services and retail. According to one estimate, Chinese migrant workers lost about $100 billion in wages that they are unlikely ever to recover.

Among migrant workers and the underdeveloped rural communities that depend on the wages they send home, a quiet crisis is taking place—with potentially dramatic consequences for China’s future growth. Despite what the GDP number suggests about the country’s successful handling of the pandemic, China’s longer-term economic risks have only grown—and are a direct result of the crisis in rural China. As Stanford University researchers Scott Rozelle and Natalie Hell document in their meticulously researched book, Invisible China: How the Urban-Rural Divide Threatens China’s Risehundreds of millions of rural Chinese face a dangerous lack of human capital and suffer from pervasive health problems, including widespread iron-deficiency anemia, uncorrected myopia, and parasitic intestinal worms. Exacerbated by the pandemic, China’s rural crisis remains largely invisible to outside observers, and even to many Chinese."

 

Read the full article from Foreign Policy.

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A mother and child preparing food inside a yurt in rural China.
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Chorzempa & Huang write on China's rural human capital crisis stating that "no country with China's vast education and public health problems has ever broken out of the ranks of middle-income countries." The article references FSI Senior Fellow and SCCEI Director Scott Rozelle's book "Invisible China: How the Urban-Rural Divide Threatens China’s Rise" throughout.

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